La2O3弥散增强钨合金面对等离子体材料及其高热负荷性能

材料科学与工程学报, 2009, 27(3): 415-440.

La2O3弥散增强钨合金面对等离子体材料及其高热负荷性能

种法力 ^1, , 陈勇 ^2, , 吴玉程 ^3, , 陈俊凌 ^4,

1.徐州工程学院,数学与物理科学学院,江苏,徐州,221008

2.合肥工业大学,材料科学与工程学院,安徽,合肥,230009

3.合肥工业大学,材料科学与工程学院,安徽,合肥,230009

4.中国科学院,等离子体物理研究所,安徽,合肥,230031

关键词：钨合金 , 面对等离子体材料 , 热负荷性能

Tungsten Alloys Strengthened with Dispersed La2O3 and its Heat Flux Performance

本论文通过粉末冶金方法制备La2O3弥散增强钨合金面对等离子体材料并对其进行了组织性能和电子束热负荷性能的分析.结果显示La2O3弥散增强相抑制钨粒子长大效果显著,而且使W-1wt.%La2O3合金材料的抗弯强度提高了约35.7%.同时,W-1wt.%La2O3也表现出较好的热负荷性能,能够承受6MW/m2热负荷功率密度;在更高热负荷条件下,较高的表面温度导致La2O3出现熔化及W-1wt.%La2O3合金材料表面出现微裂纹等损伤,因此面对等离子体材料直接水冷对延长材料使用寿命和提高热负荷性能是十分重要的.

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La2O3弥散增强钨合金面对等离子体材料及其高热负荷性能

Tungsten Alloys Strengthened with Dispersed La2O3 and its Heat Flux Performance

参考文献